Finding the Fourth Proportional to 209,608.21, 289,251.57 and 114,112.99
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Solution
The fourth proportional to 209,608.21, 289,251.57 and 114,112.99 is: 157,471.70
Step by Step Solution
- Step 1: Write the proportion equation
209,608.21 : 289,251.57 = 114,112.99 : x - Step 2: Convert to fraction form
209,608.21/289,251.57 = 114,112.99/x - Step 3: Cross multiply
209,608.21x = 289,251.57 × 114,112.99 - Step 4: Simplify right side
209,608.21x = 33,007,361,514.89 - Step 5: Solve for x
x = 33,007,361,514.89/209,608.21 - Step 6: Final answer
x = 157,471.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.